Abstract: A unitary assembly (10); is disclosed for isolating a leak in a side pocket mandrel (12) between the tubing annulus (16) about a tubing string (14) and the interior (20) of the tubing string. The unitary assembly includes an upper packer (22), and a lower packer (24) interconnected by a tailpipe (26). The upper packer (22) is preferably set by a wireline tool and the lower packer is preferably set hydraulically. This eliminates the need for a drilling or workover rig to be setup over the well when patching a leak.

Abstract: A dual bore well treating tool having a pressure operated valve therein that is useful in conjunction with a dual bore packer and with a dual bore on and off or connection tool. One of the bores through the on/off tool, the treating tool and the packer is utilized for producing oil and/or gas from the well bore, and a second bore is utilized for opening the valve and for simultaneously injecting a treating material into the fluid being produced.

Abstract: An improved flow control valve for oil and gas wells and the like that includes a simplified valve actuating member that converts rotation of the tubing string into reciprocal motion of the valve actuating member and into a pivotal movement of the valve between open and closed positions.

Abstract: Apparatus for treating an isolated zone of a well bore includes primary and secondary tubing strings extending from the surface of the well releasably connected to a packer that has been set therein. The primary tubing string extends through the packer whereby the well can be produced or chemical can be injected to treat the isolated zone. The secondary string is of substantially smaller size and is arranged so that it is isolated from the primary tubing string which extends through the releasable connection and through the packer whereby inhibitors, diluents, and the like can be injected in the zone to be treated.

Abstract: The valve includes a tubular housing member that is connected in a string of a tubing that extends into an oil or gas well. The upper end of the tubular housing member is rotatable and is connected through actuators to a valve member that is pivotally supported in the tubular housing member. Rotation of the upper end of the tubular housing causes the actuators to move linearly and in opposite directions simultaneously pivot the valve member between open and closed positions. Pressure responsive means bias the seat toward the valve to maintain a fluid tight seal regardless of the direction of differential in pressure existing across the valve.

Abstract: A well production apparatus for fluid production through a pair of downhole safety valves to both well tubing and the tubing annulus includes a packer with a dual bore head connected to the lower end of the tubing. Primary and secondary packer mandrels depending from connections with said head serve as conduits for directing production fluid to the safety valves with the secondary mandrel also serving as a conduit through which a power conductor extends for connecting with a motor beneath the packer. A set of hydraulically movable slips slidable between retracted and deployed positions are carried on the mandrels on opposite sides of a packing element and a setting cylinder secured to one of said packer mandrels defines a pressure chamber containing a setting piston which is movable from a retracted position to an extended position to compress said packing element and deploy said slips for anchoring said packer in the casing.

Abstract: An oilwell tubing tester for the in-place pressure-testing of oilwell tubing strings for leaks, utilizes a flapper valve, a valve seat, a three-piece sealing mechanism, and a sliding J-mandrel located inside the tester housing in abutting relationship with the flapper valve.